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    METHOD FOR INCREASING THE INNER STABILITY OF SODIUM PERCARBONATE
    1.
    发明申请
    METHOD FOR INCREASING THE INNER STABILITY OF SODIUM PERCARBONATE 审中-公开
    提高过碳酸钠的内部稳定性的方法

    公开(公告)号：WO02051745A3

    公开(公告)日：2002-08-29

    申请号：PCT/EP0112446

    申请日：2001-10-26

    Applicant: DEGUSSA

    Inventor： JAKOB HARALD ,  HESSBERGER WALDEMAR ,  KAISER LOTHAR ,  LATTICH JUERGEN ,  OVERDICK RALPH

    IPC: C01B15/10

    CPC classification number: C01B15/106

    Abstract: The invention relates to a method for increasing the inner stability of encapsulated and non-encapsulated sodium percarbonate. According to the invention, particulate, dry sodium percarbonate is treated for at least 2 minutes at a temperature of 70 to 120 DEG C and during the treatment, the air surrounding the particles is exchanged, in order to maintain or reduce humidity.

    Abstract translation: 本发明涉及增加涂布和未涂布的过碳酸钠的内部稳定性的方法。 根据本发明的粒状干的过碳酸钠是在70〜120℃下的至少2分钟的范围内的温度下处理，与周围的粒子的空气，以获得湿度恒定或减小在处理过程中所取代。

    COATED SODIUM PERCARBONATE GRANULES WITH IMPROVED STORAGE STABILITY
    3.
    发明专利
    COATED SODIUM PERCARBONATE GRANULES WITH IMPROVED STORAGE STABILITY 未知

    公开(公告)号：CA2524699A1

    公开(公告)日：2004-11-18

    申请号：CA2524699

    申请日：2004-04-24

    Applicant: DEGUSSA

    Inventor： LATTICH JUERGEN ,  JAKOB HARALD ,  ZIMMERMANN KLAUS

    IPC: C01B15/10 ,  C11D3/39 ,  C11D11/00 ,  C11D17/00

    Abstract: The invention concerns coated sodium percarbonate granules comprising a core produced by fluidised bed spray granulation, containing sodium percarbonate as its main component, an inner coating layer containing an organic, hydrate- forming salt as its main component, and an outer coating layer containing as its main component at least one surfactant containing in the molecule one or more sulfate or sulfonate groups in the form of an alkali metal, alkaline- earth metal or ammonium salt. The invention also concerns a process for the production of the granules, the use of the granules in bleaching and cleanin g agents, and bleaching and cleaning agents containing the granules. The sodiu m percarbonate granules according to the invention display improved storage stability combined with high internal stability and a high active oxygen content.

    4.
    发明专利
    未知

    公开(公告)号：DE10140838A1

    公开(公告)日：2003-03-06

    申请号：DE10140838

    申请日：2001-08-21

    Applicant: DEGUSSA

    Inventor： JAKOB HARALD ,  HESBERGER WALDEMAR ,  LATTICH JUERGEN ,  OVERDICK RALPH

    IPC: C01B15/10 ,  C11D3/39 ,  B01J2/16

    Abstract: The invention relates to a method for producing granular coated sodium percarbonate with a low TAM value. The sodium percarbonate is produced by fluid bed granulation at a temperature TG in the range of from 45 to 75 DEG C and coating by spraying an aqueous solution that contains at least one coating component in a fluid bed at a temperature TU in the range of from 35 to 100 DEG C. According to the invention, a) after fluid bed granulation but before coating a supplementary drying step is carried out at TNT of greater than TG, or b) fluid bed granulation is carried out in at least two steps at TG1, TG2 TGn, with TG2 or TGn being greater than TG1 and no supplementary drying step being required if 2/3 of the granules have been formed at TG1, or c) supplementary drying is carried out not after granulation but only after coating, namely at TUNT, with TUNT being at least 20 DEG C higher than TG.

    ГРАНУЛЫ ПЕРКАРБОНАТА НАТРИЯ С ПОКРЫТИЕМ С ПОВЫШЕННОЙ УСТОЙЧИВОСТЬЮ ПРИ СОХРАНЕНИИ И СПОСОБ ИХ ПОЛУЧЕНИЯ
    6.
    发明专利
    ГРАНУЛЫ ПЕРКАРБОНАТА НАТРИЯ С ПОКРЫТИЕМ С ПОВЫШЕННОЙ УСТОЙЧИВОСТЬЮ ПРИ СОХРАНЕНИИ И СПОСОБ ИХ ПОЛУЧЕНИЯ 未知

    公开(公告)号：UA84291C2

    公开(公告)日：2008-10-10

    申请号：UAA200511533

    申请日：2004-04-24

    Applicant: DEGUSSA

    Inventor： ZIMMERMANN KLAUS ,  LATTICH JUERGEN ,  JAKOB HARALD

    IPC: C01B15/00 ,  C01B15/10 ,  C11D3/39 ,  C11D11/00 ,  C11D17/00

    Abstract: Гранулыперкарбонатанатрияс покрытиеми способихполучения, гдегранулывключаютсердцевину, полученнуюраспылительнымгранулированиемв псевдосжиженномслое, котораясодержитв качествеглавногокомпонентаперкарбонатнатрия, внутреннийслойпокрытия, содержащийв качествесвоегоглавногокомпонентанеорганическуюгидратообразующуюсоль, ивнешнийслойпокрытия, которыйвключаетв качествесвоегоглавногокомпонента, покрайнеймере, одноповерхностно-активноевещество, содержащеев молекулеоднуилинесколькосульфатныхилисульфонатнихгруппв формесолищелочногометалла, щелочноземельногометаллаилиаммония.

    METHOD FOR PRODUCING GRANULAR COATED SODIUM PERCARBONATE ANDPRODUCT OBTAINED ACCORDING TO SAID METHOD
    7.
    发明专利
    METHOD FOR PRODUCING GRANULAR COATED SODIUM PERCARBONATE ANDPRODUCT OBTAINED ACCORDING TO SAID METHOD 未知

    公开(公告)号：CA2457844A1

    公开(公告)日：2003-03-06

    申请号：CA2457844

    申请日：2002-07-04

    Applicant: DEGUSSA

    Inventor： OVERDICK RALPH ,  JAKOB HARALD ,  LATTICH JUERGEN ,  HESSBERGER WALDEMAR

    IPC: C01B15/10 ,  C11D3/39

    Abstract: The invention relates to a method for producing granular coated sodium percarbonate with a low TAM value. The sodium percarbonate is produced by fluid bed granulation at a temperature TG in the range of from 45 to 75 ~C a nd coating by spraying an aqueous solution that contains at least one coating component in a fluid bed at a temperature TU in the range of from 35 to 100 ~C. According to the invention, a) after fluid bed granulation but before coating a supplementary drying step is carried out at TNT of greater than TG , or b) fluid bed granulation is carried out in at least two steps at TG1, TG2 TGn, with TG2 or TGn being greater than TG1 and no supplementary drying step being required if 2/3 of the granules have been formed at TG1, or c) supplementary drying is carried out not after granulation but only after coating, namely at TUNT, with TUNT being at least 20 ~C higher than TG.

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